package main

import (
	"fmt"
	"p2/say"
	"p4/utils"
	"p3/mymath"
	
)

func init()  {
	fmt.Println("p4 init()")
}

func main()  {
	n1 := 1800
	n2 := 200
	fmt.Println(say.SayHello("张三"))
	fmt.Println("求和结果是：", utils.AddCalc(n1, n2))
	fmt.Println("求差结果是：", mymath.SubCalc(n1, n2))
}